JavaScript Simplified - Chapter 87 Exercises

The spread operator works with arrays and _____.

objects

The spread operator copies the ______ of arrays.

elements

Fill in the blank to include the elements of the array firstArray in the array secondArray.

const secondArray = [1, 2, 3, _______];

...firstArray

\.\.\.firstArray

Fill in the blank to include the properties of the object smallTeam in the object largeTeam.

const largeTeam = {
players: 10,
_________
};

...smallTeam

\.\.\.smallTeam

Create a new array comprising one string and all the elements of another array. Make up everything.

const pets = ["fish", ...domesticatedMammals];

const[a-z_$][a-zA-Z0-9_$]*=\[•.*•,\.\.\.[a-z_$][a-zA-Z0-9_$]*\];

In the console display the elements of an array using the spread operator. Make up the name of the array.

console.log(...planets);

console\.log$\.\.\.[a-z_$][a-zA-Z0-9_$]*$;

Add the elements of an array to the end of another array. Make up the names of the arrays.

array1.push(...array2);

[a-z_$][a-zA-Z0-9_$]*\.push$\.\.\.[a-z_$][a-zA-Z0-9_$]*$;

Combine the properties of two objects into a new third object. Make up everything.

const allBusRoutes = {
...expressBusRoutes,
...localBusRoutes
};

const[a-z_$][a-zA-Z0-9_$]*={[\r\n]\.\.\.[a-z_$][a-zA-Z0-9_$]*,[\r\n]\.\.\.[a-z_$][a-zA-Z0-9_$]*[\r\n]};

Create an array.
Create a second array that comprises some integers plus the elements of the first array.
Display the second array in an alert.
Wait a moment.
If you've coded correctly, an alert will display the second array.
Dismiss the alert by clicking OK.
For help with this code, see Chapter 87 in the book.

JavaScript Simplified / Chapter 87 Exercises